Gas-generating stove.



Ila/774,866. PATENTED NOV. 15, 1904. 0. A. BUZZBLL.

GAS GENERATING STOVE. APPLIOATION 31mm JUNE 18.1904.

N0 MODEL.

Z5 d AQ/der UNITED STATES Patented November 15, 1904.

PATENT ()FFICE.

GAS-GENERATING STOVE.

SPECIFICATION formingpart of Letters Patent No. 774,866, dated November 15, 1904.

. Application filed June 18, 1904:. Serial No. 213,104. (No model.)

To all whom it may concern:

Be it known that I, CHARLES ALBERTO BUZ- ZELL, a citizen of the United States, residing at Salisbury, in the countyof Essex and State of Massachusetts, have invented new and useful Improvements in Gas-Generating Stoves,

of which the following is a specification.

This invention relates to an improved gasgenerating stove embodying certain novel and practical improvements possessing special utility in connection with that type of stove commonly termed parlor heating-stoves.

To this end the invention contemplates an improved construction of heating-stove embodying means for heating and circulating air for distribution throughout a room and also comprising means for utilizing the heat in the fire-pot for the generation of a quantity of gas, which may be employed for illuminating purposes and also as an auxiliary heating medium for the stoveitself.

WVith these and other objects in view, which will more readily appear as the nature of the invention is better understoochthe same consists in the novel construction, combination, and arrangement of parts, which will be hereinafter more fully described,illustrated, and claimed.

The essential features of the invention involved in the means for mounting and handling the gas-generating retort and in the auxiliary gas-burner devices are necessarily susceptible to structural change without departing from the scope of the invention; but a preferred embodiment thereof is shown in the accompanying drawings, in which Figure 1 isa vertical longitudinal sectional view of the gas-generating parlor heatingstove embodying the improvements contem plated by the present invention. Fig. 2 is a cross-sectional view immediately above the grate-line on the line 22 of Fig. 1. Fig. 3 is a similar View on the line 3 3 of Fig. 1.

Like reference-numerals designate corresponding parts in the several figures of the drawings.

In carrying out the present invention the improvements are preferably associated with a stove having an upright cylindrical body 1 provide the space 5.

and provided at the top with a register-cover 2,through which fresh heated air is thrown out into the room in which thestove is arranged. To provide for the distribution of heated air directly into the room. the register-cover 2, forming the cap or top cover of the stovebody, is provided with an annular air -distributing drum 3. This annular air-distributing drum 3 has formed in the shell thereof a multiplicity of circulating openings or perforations 4 and is arranged at the upper end of an air-space 5, entirely surrounding the stovebody, and formed bythe cylindrical air-jacket 6, enveloping the body, and spaced from the outer surface thereof a sufiicient distance to The surrounding airjacket 6 for the cylindrical stove-body extends the full length or height thereof,so that the air is heated during the entire course of its circulation from the bottom to the top of the stove, and the lower end of the air-space 5, confined within the jacket,opens into the coldair chamber 7, partitioned off at the bottom of the stove-body and receiving a supply of freshcold air through the bottom cold-air inlet 8, as plainly shown in Fig. 1 of the drawings.

The stove-body 1 is provided with the usual bottom ash-pit 9, having the ordinary ash-pit door 10, and immediately above the plane of the ash-pit the stove-bod y has provided therein the fire-pot 11, at the bottom of which firepot is arranged a grate 12 of any suitable or approved construction.

A distinguishing feature of the present invention resides in the employment of a tiltable gas-generating retort 13, supported inside of the stove-body directly above the plane of the fire-pot 11, so as to be exposed to the full efl'ect of the heat from the fire in the pot. This gas-generating retort is preferably of the ordinary form or shape and is designed to be filled with a supply of coal or other gas-producing substance, which when subjected to heat in a closed vessel or receptacle gives off gas. The sealing of the retort is accomplished through the employment of a-lid or cover 14:, snugly registering in theopen top of the retort and designed to be raised and lowered through the medium of a lifting-cable 15, having a suitable connection at its lower end, as at 16, with the lid or cover and winding and unwinding at its other end upon the winding-rod 17. The said winding-rod 17 is journaled in suitable bearings 18, provided in the stove-body, at or near the top thereof, and is arranged transversely with reference to such body. One end of the winding-rod 17 projects to the exterior of the body and is provided at its exposed end with a key stem or post 19, designed to receive a key, handle, or equivalent device, by means of which the rod 17 may be turned in a direction for raising and lowering the lid or cover 14 of the retort.

The mounting of the retort 13 is such that the same may be freely tilted and dumped of its contents when the latter are exhausted. This tiltable mounting of the retort is preferably accomplished by providing the retort With diametrically opposite trunnions 20 and 21, journaled in suitable bearings at opposite sides of the stove-body and both projecting to the exterior of the body. The trunnion 20 is solid and provided at its outer end with a key-stem 22 for a handle, key, or equivalent device for turning process, and the opposite trunnion 21 is hollow and forms an outletpipe through which the gas passes and is delivered through a suitable pipe connected with the outer end of the trunnion 21 to the usual gas-purifying appliances and thence to the gas-holder. From this gas-holder the supply of gas may be carried throughout the house for illuminating purposes, and also from the same holder a supply may be returned to the stove for heating purposes through the auxiliary gas-supply pipe 23.

The auxiliary gas-supply pipe from the holder supplied by the retort 13 is preferably arranged to extend beneath the base of the stove and has coupled thereto a plurality of upright burner feed-pipes 24. The series of burner feed-pipes 24 extend from their connection with the pipe 23 upwardly into the air-space 5 and are provided with the upper and lower laterally-disposed gas-jets 25 and 26, which are respectively disposed opposite and in communication with the upper and lower burner-tubes 27 and 28. The upper set of burner-tubes 27 are arranged in a circular series about the stove-body and projected inwardly from the latter in the plane of the top of the fire-pot, hence directly below the plane of the retort 13, while the lower set of tubes 28 are arranged to project inwardly from the body below the grate-line 12. In connection with both sets of auxiliary burner-tubes it will be observed that the gas-jets 25 and 26 are located within the air-space 5, and hence such air-space provides the necessary air for mixing with the gas jetted into the tubes 27 and 28 from the gas-jets.

It will be seen that the auxiliary burner devices just described provide means for utilizing a portion of the generated gas for greatly augmenting the heat within the body of the stove, which augmented heat not only insures a more effective gas-generating action, but also provides for a greater heating up of the stove-body itself.

From the foregoing it is thought that the construction, operation, and many advantages of the herein-described gas-generating stove will be readily apparent without further description, and it will be understood that various changes in the form, proportion, and minor details of construction may be resorted to without departing from the spirit of the invention or sacrificing any of the advantages thereof.

Having thus described the invention, what is claimed.- and desired to be secured by Letters Patent, is

1. In a gas-generating stove, the combination with the stove-body, of agas-generating retort arranged Within the body above the fire pot, and a lifting device for the retort-lid also carried by the body.

2. In a gas-generating stove, the stove-body, a tiltable gas-generating retort mounted within the body, and a lifting device for the retort-lid carried by the body.

3. In a gas-generating stove, the stove-body, a tiltable gas-generating retort mounted with in the body on trunnions, and a lifting device for the retort-lid carried by the body.

4. In a gas-generating stove, the stove-body, a tiltable gas-generating retort journaled in the body on trunnions, one of which trun nions is hollow and constitutes the gas-outlet pipe, at retort-lid, and a lifting device for the lid comprising a winding-rod and a cable connection between such rod and the lid.

5. In a gas-generating stove, the stove-bod y, a tiltable gas-generating retort journaled on trunnions within the body and arranged di rectly above the fire-pot, one of the retorttrunnions being arranged to receive the turning implement and the other trunnion being hollow to form a gas-outlet pipe, the retortlid, and a lifting device for the lid comprising a transversely-arranged winding-rod with an exterior operating member and a cable connecting said rod with the lid.

6. In a gas-generating stove, the stove-body, a gas-generating retort arranged within the body, upper andlower sets of inwardly-projecting burner-tubes located respectively at the top of the fire-pot below the retort, and at or below the grate-line, burner feed-pipes having separate sets of gas-jets for the upper and lower burner-tubes, and gas-supply connections.

7. In a gas-generating stove, the stove-body having an air-circulating jacket, a gas-generating retort arranged within the body, up-

IOC

per and lower sets of inwardly-projecting auxiliary gas-supply pipe connected with all of iliary burner-tubes, the upper set of tubes bethe burner feed-pipes. 1O ing located at the top of the fire-pot below the In testimony whereof I aflix my signature in retort, and the lower of said tubes being dispresence of two witnesses.

5 posed at or below the grate-line, burner feed CHARLES ALBERTO BUZZELL.

devices arranged within the air-circulating i Witnesses: 4 space and having lateral gas-jets lying oppo- EDWARD H. ROWELL,

site the burner-tubes of both sets, and an aux- WILLIAM S. CURRIE. 

